lld/test/lit.cfg.py

   1 # -*- Python -*-
   2
   3 import os
   4 import platform
   5 import re
   6 import subprocess
   7 import locale
   8
   9 import lit.formats
  10 import lit.util
  11
  12 from lit.llvm import llvm_config
  13
  14 # Configuration file for the 'lit' test runner.
  15
  16 # name: The name of this test suite.
  17 config.name = 'lld'
  18
  19 # testFormat: The test format to use to interpret tests.
  20 #
  21 # For now we require '&&' between commands, until they get globally killed and the test runner updated.
  22 config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
  23
  24 # suffixes: A list of file extensions to treat as test files.
  25 config.suffixes = ['.ll', '.s', '.test', '.yaml', '.objtxt']
  26
  27 # excludes: A list of directories to exclude from the testsuite. The 'Inputs'
  28 # subdirectories contain auxiliary inputs for various tests in their parent
  29 # directories.
  30 config.excludes = ['Inputs']
  31
  32 # test_source_root: The root path where tests are located.
  33 config.test_source_root = os.path.dirname(__file__)
  34
  35 config.test_exec_root = os.path.join(config.lld_obj_root, 'test')
  36
  37 llvm_config.use_default_substitutions()
  38 llvm_config.use_lld()
  39
  40 tool_patterns = [
  41     'llc', 'llvm-as', 'llvm-mc', 'llvm-nm', 'llvm-objdump', 'llvm-pdbutil',
  42     'llvm-dwarfdump', 'llvm-readelf', 'llvm-readobj', 'obj2yaml', 'yaml2obj',
  43     'opt', 'llvm-dis']
  44
  45 llvm_config.add_tool_substitutions(tool_patterns)
  46
  47 # LLD tests tend to be flaky on NetBSD, so add some retries.
  48 # We don't do this on other platforms because it's slower.
  49 if platform.system() in ['NetBSD']:
  50     config.test_retry_attempts = 2
  51
  52 # When running under valgrind, we mangle '-vg' onto the end of the triple so we
  53 # can check it with XFAIL and XTARGET.
  54 if lit_config.useValgrind:
  55     config.target_triple += '-vg'
  56
  57 # Running on ELF based *nix
  58 if platform.system() in ['FreeBSD', 'NetBSD', 'Linux']:
  59     config.available_features.add('system-linker-elf')
  60
  61 # Set if host-cxxabi's demangler can handle target's symbols.
  62 if platform.system() not in ['Windows']:
  63     config.available_features.add('demangler')
  64
  65 llvm_config.feature_config(
  66     [('--build-mode', {'DEBUG': 'debug'}),
  67      ('--assertion-mode', {'ON': 'asserts'}),
  68      ('--targets-built', {'AArch64': 'aarch64',
  69                           'AMDGPU': 'amdgpu',
  70                           'ARM': 'arm',
  71                           'AVR': 'avr',
  72                           'Hexagon': 'hexagon',
  73                           'Mips': 'mips',
  74                           'MSP430': 'msp430',
  75                           'PowerPC': 'ppc',
  76                           'RISCV': 'riscv',
  77                           'Sparc': 'sparc',
  78                           'WebAssembly': 'wasm',
  79                           'X86': 'x86'})
  80      ])
  81
  82 # Set a fake constant version so that we get consistent output.
  83 config.environment['LLD_VERSION'] = 'LLD 1.0'
  84 config.environment['LLD_IN_TEST'] = '1'
  85
  86 # Indirectly check if the mt.exe Microsoft utility exists by searching for
  87 # cvtres, which always accompanies it.  Alternatively, check if we can use
  88 # libxml2 to merge manifests.
  89 if (lit.util.which('cvtres', config.environment['PATH']) or
  90         config.have_libxml2):
  91     config.available_features.add('manifest_tool')
  92
  93 if config.have_libxml2:
  94     config.available_features.add('libxml2')
  95
  96 if config.have_dia_sdk:
  97     config.available_features.add("diasdk")
  98
  99 if config.sizeof_void_p == 8:
 100     config.available_features.add("llvm-64-bits")
 101
 102 tar_executable = lit.util.which('tar', config.environment['PATH'])
 103 if tar_executable:
 104     tar_version = subprocess.Popen(
 105         [tar_executable, '--version'],
 106         stdout=subprocess.PIPE,
 107         stderr=subprocess.PIPE,
 108         env={'LANG': 'C'})
 109     sout, _ = tar_version.communicate()
 110     if 'GNU tar' in sout.decode():
 111         config.available_features.add('gnutar')
 112
 113 # ELF tests expect the default target for ld.lld to be ELF.
 114 if config.ld_lld_default_mingw:
 115     config.excludes.append('ELF')